PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

83777DSeat,valve

Griswold Industries Dba Cla-Val Co · NSN 4820-01-313-9435 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-313-9435 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-313-9435. Primary manufacturer part number: 83777D.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN
  • Material: STEEL SEAT
  • 5 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-313-9435, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-313-9435
Primary Part Number83777D
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusACTIVE
Seating Surface ShapeFLAT
Style DesignatorPLAIN
MaterialSTEEL SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6130-01-309-645896756 INTERCHANGEABLE
Rectifier,metallic
Prestolite Electric Inc
4820-01-313-60336778301K INTERCHANGEABLE
Cock,drain
Griswold Industries Dba Cla-Val Co
4820-01-313-6088 INTERCHANGEABLE
Stem,fluid Valve
4820-01-313-6186 INTERCHANGEABLE
Disk,valve
4820-01-326-80259675601A INTERCHANGEABLE
Valve,check
Griswold Industries Dba Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
PL-9675601A REF.03 Griswold Industries Dba Cla-Val Co (USA)
96756 Griswold Industries Dba Cla-Val Co (USA)
83777D Chrysler Corp Fleet Div Federal Government Vehicle Sales Dept (USA)
96756 ITEM 3 Griswold Industries Dba Cla-Val Co (USA)
83777D PRIMARY Griswold Industries Dba Cla-Val Co (USA)
Related Parts
6130-01-309-6458INTERCHANGEABLE
RECTIFIER,METALLIC
96756
4820-01-313-6033INTERCHANGEABLE
COCK,DRAIN
6778301K
4820-01-313-6088INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-313-6186INTERCHANGEABLE
DISK,VALVE
4820-01-326-8025INTERCHANGEABLE
VALVE,CHECK
9675601A

Frequently Asked Questions

What is NSN 4820-01-313-9435?

NSN 4820-01-313-9435 is a Seat,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-313-9435?

NSN 4820-01-313-9435 has 5 cross-referenced part numbers: PL-9675601A REF.03 (Griswold Industries Dba Cla-Val Co), 96756 (Griswold Industries Dba Cla-Val Co), 83777D (Chrysler Corp Fleet Div Federal Government Vehicle Sales Dept), 96756 ITEM 3 (Griswold Industries Dba Cla-Val Co), 83777D (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-313-9435?

There are 5 known substitutes for 4820-01-313-9435: 6130-01-309-6458, 4820-01-313-6033, 4820-01-313-6088 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 83777D?

Key specifications for 83777D: Seating Surface Shape: FLAT; Style Designator: PLAIN; Material: STEEL SEAT. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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